Matronics Email Lists :: View topic - Undercarriage Not Retracting

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Undercarriage Not Retracting

Matronics Email Lists Forum Index -> Europa-List

View previous topic :: View next topic

Author Message

roberthatton

Joined: 06 Nov 2006
Posts: 2
Location: Bicester, United Kingdom

Posted: Mon Jun 18, 2007 11:19 am Post subject: Undercarriage Not Retracting

Has anyone experienced undue stiffness when retracting the mono-wheel undercarriage, or its absolute refusal to retract? I have experienced this and I am trying to figure out how to cure the issue. Any ideas?  

   

Robert Hatton  

A128 N741JH  

   

       [quote][b]

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

carl(at)flyers.freeserve.
Guest

Posted: Mon Jun 18, 2007 12:19 pm Post subject: Undercarriage Not Retracting

I assume the distance between the rubber block  upper and lower reaction plates is correct - ie: 133mm. If it is too small, the  undercarriage will not retract fully or lock in place.

  

 The most likely suspect is that the swinging arm  bearings have been over tightened. If they are too tight you will need to insert  shims between the bearing shells to loosen them up.

  

 You dont say if the retraction mechanism ever  worked or if the aircraft is flying.

  

 [quote]   ---

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

bill.sue(at)orcon.net.nz
Guest

Posted: Mon Jun 18, 2007 1:26 pm Post subject: Undercarriage Not Retracting

Yes I had this early on.



After checking all of the mechanism I finally tracked it down to the 

lever binding in the slot as it tried to move forward. The lever was not 

tight in the slot but I think may have been twisting slightly as I tried 

to retract. The cure was to polish the lever and each side of the slot, 

squirt in some silicone lubricant and it solved it completely.



Sue & Bill



ZK CHV

XS Mono

914/Airmaster

580hrs



Robert Hatton wrote:

 	  Quote: 	
		  

 Has anyone experienced undue stiffness when retracting the mono-wheel 

 undercarriage, or its absolute refusal to retract? I have experienced 

 this and I am trying to figure out how to cure the issue. Any ideas?



  



 Robert Hatton



 A128 N741JH



  



 *

 *

 __________ NOD32 2337 (20070618) Information __________

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

karelvranken(at)hotmail.c
Guest

Posted: Mon Jun 18, 2007 2:43 pm Post subject: Undercarriage Not Retracting

Robert,

 If your undercarriage worked already well before,  than it is perhaps a lubricating problem of the undercarriage hinges. They are  not greased once and forever. They can only function with regular appliance of  some kind of creap oil.

 My personnal experience,

 Karel Vranken, # 447 Monowheel F-PKRL.

 [quote]   ---

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

pjeffers(at)talktalk.net
Guest

Posted: Mon Jun 18, 2007 10:56 pm Post subject: Undercarriage Not Retracting

Try lubrication of the main retraction shaft where it rotates in the undercarriage frame.

Pete jeffers



--

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Europa-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum